getPixelsRef() has changed into getPixels()

[pierrextardif]

I think that line 220 of ofxThermalPrinter.cpp should be :

 //    print(_img.getPixelsRef(),_threshold);
print(_img.getPixels(),_threshold);

getPixelsRef is deprecated: line 409 in ofImage.cpp :

    /// \returns An ofPixels reference that you can use to manipulate the raw pixel data of the ofImage.
    OF_DEPRECATED_MSG("Use getPixels() instead ", ofPixels_<PixelType> & getPixelsRef());
    OF_DEPRECATED_MSG("Use getPixels() instead ", const ofPixels_<PixelType> & getPixelsRef() const);

It worked with the change for me.